Finding the Fourth Proportional to 42,551.10, 63,835.86 and 12,968.16

Step by Step Solution

1. Step 1: Write the proportion equation
   42,551.10 : 63,835.86 = 12,968.16 : x
2. Step 2: Convert to fraction form
   42,551.10/63,835.86 = 12,968.16/x
3. Step 3: Cross multiply
   42,551.10x = 63,835.86 × 12,968.16
4. Step 4: Simplify right side
   42,551.10x = 827,833,646.22
5. Step 5: Solve for x
   x = 827,833,646.22/42,551.10
6. Step 6: Final answer
   x = 19,455.05